qcardinalityverifier_p.h

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//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.

#ifndef Patternist_CardinalityVerifier_H
#define Patternist_CardinalityVerifier_H

#include "qsinglecontainer_p.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

namespace QPatternist
{

    class CardinalityVerifier : public SingleContainer
    {
    public:
        CardinalityVerifier(const Expression::Ptr &operand,
                            const Cardinality &card,
                            const ReportContext::ErrorCode code);

        virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &context) const;
        virtual Item evaluateSingleton(const DynamicContext::Ptr &) const;

        virtual SequenceType::List expectedOperandTypes() const;
        virtual SequenceType::Ptr staticType() const;

        virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;

        virtual Expression::Ptr compress(const StaticContext::Ptr &context);

        static Expression::Ptr
        verifyCardinality(const Expression::Ptr &operand,
                          const Cardinality &card,
                          const StaticContext::Ptr &context,
                          const ReportContext::ErrorCode code = ReportContext::XPTY0004);

        virtual const SourceLocationReflection *actualReflection() const;

        ID id() const;
    private:
        static inline QString wrongCardinality(const Cardinality &req,
                                               const Cardinality &got = Cardinality::empty());

        const Cardinality m_reqCard;
        const bool m_allowsMany;
        const ReportContext::ErrorCode m_errorCode;
    };
}

QT_END_NAMESPACE

QT_END_HEADER

#endif